Home / 117,031.27-161,504.31-63,317.44

Finding the Fourth Proportional to 117,031.27, 161,504.31 and 63,317.44

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Solution

The fourth proportional to 117,031.27, 161,504.31 and 63,317.44 is: 87,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,031.27 : 161,504.31 = 63,317.44 : x
  2. Step 2: Convert to fraction form
    117,031.27/161,504.31 = 63,317.44/x
  3. Step 3: Cross multiply
    117,031.27x = 161,504.31 × 63,317.44
  4. Step 4: Simplify right side
    117,031.27x = 10,226,039,458.17
  5. Step 5: Solve for x
    x = 10,226,039,458.17/117,031.27
  6. Step 6: Final answer
    x = 87,378.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.